physical

A car traveling at 28 m/s starts to decelerate steadily. It comes to a complete stop in 13 seconds. What is its acceleration?

asked by Francisco
  1. v = Vi + a t
    0 = 28 + a (13)
    a = -28/13 m/s^2
    the - sign is because it is braking.

    posted by Damon

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